The invention belongs to the technical field of
industrial wastewater treatment, and specifically relates to a purifying treatment method for chloridized
tail gas leaching
wastewater. The technical problem to be solved of the invention is to provide the purifying treatment method for chloridized
tail gas leaching
wastewater and the method comprises the following steps: a, adding hydrochloric acidinto the
wastewater to regulate the pH (Potential of
Hydrogen) value of a
control system to be 1 to 2, stirring and removing free
chlorine; b, adding alkali liquor to regulate the pH value of the
control system to be 3 to 4, and filtrating to remove the
solid; c, then adding alkali liquor again to regulate the pH value of the
control system to be 9 to 11, and filtrating to remove the
solid, wherein the obtained filter liquor is a purified solution. The wastewater subjected to purification through the treatment method provided by the invention is extremely low in
impurity content, except for alarge amount of NaCl, and can be recycled directly by the chlor-alkali industry, not only can the
environmental protection pressure, which is brought by the wastewater, on related TiCl4 manufacturersbe reduced or even eliminated, but also the manufacturing cost of the chlor-alkali industry is reduced.